Declarations of war have never been a constitutional requirement for military action abroad. The United States has used force abroad more than 130 times, but has only declared war five times - the War of 1812, the Mexican-American War, the Spanish-American War, and World Wars I and II.

Nonetheless, Article 5 makes clear that if an Iraqi civilian who is not a member of the armed forces, has engaged in attacks on Coalition forces, the Geneva Convention permits the use of more coercive interrogation approaches to prevent future attacks.

The United States has used force abroad more than 130 times, but has only declared war five times - the War of 1812, the Mexican-American War, the Spanish-American War, and World Wars I and II.

Under the Geneva Convention, for example, a POW is required only to provide name, rank, and serial number and cannot receive any benefits for cooperating.

I do not think that torture is necessary. But it may be the case that interrogation methods that go beyond questioning, but do not arise to the level of torture, may be necessary to get actionable intelligence from high-ranking al Qaeda leaders.

The effort to blur the lines between Guantanamo and Abu Ghraib reflects a deep misunderstanding about the different legal regimes that apply to Iraq and the war against al Qaeda.

It is important to recognize the differences between the war in Iraq and the war on terrorism. The treatment of those detained at Abu Ghraib is governed by the Geneva Conventions, which have been signed by both the U.S. and Iraq.